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| 1 /* Simple S/MIME uncompression example */ |
| 2 #include <openssl/pem.h> |
| 3 #include <openssl/cms.h> |
| 4 #include <openssl/err.h> |
| 5 |
| 6 int main(int argc, char **argv) |
| 7 { |
| 8 BIO *in = NULL, *out = NULL; |
| 9 CMS_ContentInfo *cms = NULL; |
| 10 int ret = 1; |
| 11 |
| 12 OpenSSL_add_all_algorithms(); |
| 13 ERR_load_crypto_strings(); |
| 14 |
| 15 /* Open compressed content */ |
| 16 |
| 17 in = BIO_new_file("smcomp.txt", "r"); |
| 18 |
| 19 if (!in) |
| 20 goto err; |
| 21 |
| 22 /* Sign content */ |
| 23 cms = SMIME_read_CMS(in, NULL); |
| 24 |
| 25 if (!cms) |
| 26 goto err; |
| 27 |
| 28 out = BIO_new_file("smuncomp.txt", "w"); |
| 29 if (!out) |
| 30 goto err; |
| 31 |
| 32 /* Uncompress S/MIME message */ |
| 33 if (!CMS_uncompress(cms, out, NULL, 0)) |
| 34 goto err; |
| 35 |
| 36 ret = 0; |
| 37 |
| 38 err: |
| 39 |
| 40 if (ret) |
| 41 { |
| 42 fprintf(stderr, "Error Uncompressing Data\n"); |
| 43 ERR_print_errors_fp(stderr); |
| 44 } |
| 45 |
| 46 if (cms) |
| 47 CMS_ContentInfo_free(cms); |
| 48 |
| 49 if (in) |
| 50 BIO_free(in); |
| 51 if (out) |
| 52 BIO_free(out); |
| 53 |
| 54 return ret; |
| 55 |
| 56 } |
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